Ideal for Housing & Industrial Equipment
- 1A output and the industry's smallest* package
Enables multi-functionality and higher performance of devices - Spread spectrum clock generation circuit
Reduces EMI - The industry's top-class* FB pin voltage accuracy of ±1.0%
Ensures stable equipment operation
36V Input, 1A, Low EMI
Step-down Switching Regulator
(Buck DC-DC Converter)
S-8564/5 Series
A Switching Regulator that Contributes to Multi-Functionality and High Performance in Housing and Industrial Equipment
Enables Multi-Functionality and Higher performance of devices
The S-8564/5 Series delivers a 1A output, enabling devices to achieve greater functionality and higher performance.
With a 36V input (absolute maximum rating of 45V) and a synchronous rectification switching regulator (DC-DC converter), it features the industry’s smallest* HSNT-8(2030) package (3.0 × 2.0 × t0.5 (max.) mm). The S-8564/5 is ideal for industrial equipment, housing facilities, and home appliances, contributing to significant downsizing of machines and modules.
For applications where mountability is of prime concern, the lineup also includes the HTMSOP-8, a gull-wing package option.
*Based on our research as of December 2025.
Reduces EMI
The S-8564/5 Series includes a built-in spread spectrum clock generation (SSCG) circuit that reduces conducted and radiated emissions, lowering overall system EMI. Compared with our conventional products, noise is reduced to about one-third.
As a result, the S-8564/5 Series simplifies noise countermeasures and contributes to the low-noise operation of various sensors and communication modules.
Ensures Stable Equipment Operation
The S-8564/5 Series is designed for a diverse range of applications, from consumer to industrial equipment, and features the industry’s top-class* FB pin voltage accuracy of ±1.0%.
This enhances output voltage accuracy, ensuring stable equipment operation. Its 105°C operation temperature capability provides reliable performance even in high-temperature environments.
*Based on our research as of December 2025.
Applications
Switching regulator lineup
Specifications
| Product Name | S-8564A, S-8564B | S-8565A, S-8565B | ||||||
|---|---|---|---|---|---|---|---|---|
| For general-use | ||||||||
| Control method | PWM | PWM / PFM switching | ||||||
| Input voltage | 4.0V to 36.0V | |||||||
| Output current | 1A | |||||||
| FB pin voltage accuracy | ±1.0% | |||||||
| Efficiency | 91% | |||||||
| Oscillation frequency | 2.2MHz typ. | |||||||
| Spread spectrum clock generation function | FSSS = +6% typ. (Diffusion rate) | |||||||
| Overcurrent protection function | 1.85A typ. (pulse-by-pulse method) | |||||||
| Thermal shutdown function | 170°C typ. (detection temperature) | |||||||
| Short-circuit protection function | Hiccup control, Latch control (selectable) | |||||||
| Duty cycle | 100% duty cycle operation | |||||||
| Soft-start function | 5.8ms typ. | |||||||
| Operation temperature range | Ta = -40°C to +105°C | |||||||
| Package | HSNT-8(2030), HTMSOP-8 |
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| Datasheet | ||||||||